Home / 740,677.35-1,022,129.66-401,138.79

Finding the Fourth Proportional to 740,677.35, 1,022,129.66 and 401,138.79

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Solution

The fourth proportional to 740,677.35, 1,022,129.66 and 401,138.79 is: 553,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,677.35 : 1,022,129.66 = 401,138.79 : x
  2. Step 2: Convert to fraction form
    740,677.35/1,022,129.66 = 401,138.79/x
  3. Step 3: Cross multiply
    740,677.35x = 1,022,129.66 × 401,138.79
  4. Step 4: Simplify right side
    740,677.35x = 410,015,853,029.82
  5. Step 5: Solve for x
    x = 410,015,853,029.82/740,677.35
  6. Step 6: Final answer
    x = 553,568.77

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.